Resolving a low battery level
CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level, do not restore power until the power lights turn off.
Resolving a low battery level when external power is available
▲Connect one of the following devices:
●AC adapter
●Optional docking device
●Optional power adapter
Resolving a low battery level when a charged battery is available
1.Turn off the computer.
2.Remove the discharged battery, and then insert a charged battery.
3.Turn on the computer.
Resolving a low battery level when no power source is available
▲Save your work and shut down the computer.
Conserving battery power
●Select low
●Turn off wireless and local area network (LAN) connections and exit modem applications when you are not using them.
●Disconnect external devices that are not plugged into an external power source, when you are not using them.
●Stop, disable, or remove any external media cards that you are not using.
●Use the fn+f9 and fn+f10 hotkeys to adjust screen brightness as needed.
●If you leave your work, initiate Standby or shut down the computer.
Storing a battery
CAUTION: To prevent damage to a battery, do not expose it to high temperatures for extended periods of time.
If a computer will be unused and unplugged from external power for more than 2 weeks, remove the battery and store it separately.
To prolong the charge of a stored battery, place it in a cool, dry place.
Calibrate a battery before using it if it has been stored for one month or more.
Using battery power 41